Phase 1 Clinical Study of MWN110 Injection in Healthy Participants and Overweight or Obese Participants

This study is a multicenter, randomized, double-blind, placebo-controlled, single and multiple ascending-dose phase 1 clinical trial aimed at evaluating the safety, tolerability, PK, PD, and immunogenicity of MWN110 Injection in healthy participants and overweight or obese participants. The study consists of two parts: Part 1, a single ascending dose (SAD) study in healthy participants with 8 dose cohorts; and Part 2, a multiple ascending dose (MAD) study in overweight or obese participants with 3 dose cohorts, with a dosing frequency of once weekly or once every 4 weeks. Approximately 103 participants will be enrolled. The primary endpoint is safety and tolerability, assessed by adverse events, vital signs, physical examination, laboratory tests, 12-lead electrocardiogram, and ophthalmic examination. Secondary endpoints include single-dose and multiple-dose PK parameters, PD parameters (body weight, BMI, waist circumference, muscle mass, body fat percentage, visceral fat, subcutaneous fat, bone mineral density), and immunogenicity (anti-drug antibodies).